CN109705814A - A kind of afterheat of IC engine recycling power cycle environmental-protecting and high-efficient type mixed working fluid - Google Patents
A kind of afterheat of IC engine recycling power cycle environmental-protecting and high-efficient type mixed working fluid Download PDFInfo
- Publication number
- CN109705814A CN109705814A CN201811643869.2A CN201811643869A CN109705814A CN 109705814 A CN109705814 A CN 109705814A CN 201811643869 A CN201811643869 A CN 201811643869A CN 109705814 A CN109705814 A CN 109705814A
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- working fluid
- mixed working
- protecting
- environmental protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of afterheat of IC engine to recycle power cycle environmental-protecting and high-efficient type mixed working fluid, it is made of carbon dioxide and refrigerant, the refrigerant is high-efficiency environmental protection refrigerant, and the high-efficiency environmental protection refrigerant is any one of fluoroethane, 1,1- Difluoroethane and difluoromethane；The mass percent of the high-efficiency environmental protection refrigerant is 10~70, remaining is carbon dioxide.Safe refrigerant in the present invention is able to satisfy the A2 class working medium safety requirements in U.S.'s ANSI/ASHRAE34-2010 standard, while CO2With fire retardation, thus there is very high security performance.The GWP value of refrigerant is 0, CO lower than 1000, ODP value2GWP value be 1, ODP value is 0.Whole mixed working fluid environmental-protecting performance is good.It is decreased obviously using the operating pressure of the dynamical system of the mixed working fluid, the cooling condition of system relaxes, and meets vehicle waste heat recovery system condition, can simultaneously high efficiente callback engine flue gas and jacket water waste heat energy, the thermal efficiency is higher than 12% under design conditions, and thermodynamic property is good.
Description
Technical field
The invention belongs to a kind of afterheat of IC engine recycling power cycle working medium more particularly to a kind of recycling of afterheat of IC engine
Power cycle mixed working fluid.
Background technique
Environmental problem is increasingly serious at present, and the energy is increasingly short, these all stimulate the development of energy-conserving and emission-cutting technology.This its
In, the energy-saving and emission-reduction of internal combustion engine are considered as wherein important link.It is followed by the bottom of representative of organic Rankine power cycle technology
Loop technique is considered as potential commercialized afterheat of IC engine recovery technology.And general organic Rankine power cycle is using biography
Controlling cryogen is as working medium, universal global warming potential (GWP value) with higher and consumption ozone latent energy value (ODP
Value), there is apparent adverse effect to environment.Before we pass through research shows that CO2It, can with good thermodynamic property
With the high low-grade waste heat source of the internal combustion engine of high efficiente callback simultaneously, system has miniaturization advantage, while CO2Belong to natural refrigerant,
Effect on environment very little, applied to having a high potential for high-temperature residual heat recycling field.But CO2Working medium since critical-temperature is too low,
Condensing condition is harsh, and it is cooling to be difficult with natural cooling source.This becomes limitation CO2The automobile-used critical issue of system.If in CO2
A small amount of low GWP value is added in working medium, the refrigerant working medium of low ODP value forms mixture.The mixture formed in this way is meeting
While environmental requirement, critical-temperature be can effectively improve, so that it be made to meet automobile-used room temperature cooling requirement.In addition to this, it mixes
The operating pressure of system can also be reduced by closing working medium, improve security of system.
Summary of the invention
For the prior art, the present invention provides a kind of afterheat of IC engine recycling power cycle environmental-protecting and high-efficient type mixing work
Matter has taken into account safety and environmental protection, the high low-grade waste heat energy of internal combustion engine that is suitable for that is efficient and meeting automobile-used cooling condition efficiently returns
The power cycle working medium of receipts.
In order to solve the above technical problems, the present invention proposes a kind of afterheat of IC engine recycling power cycle environment-friendly high-efficiency
Type mixed working fluid, is made of carbon dioxide and refrigerant, and the refrigerant is high-efficiency environmental protection refrigerant, the efficient and environment-friendly type
Refrigerant is any one of fluoroethane, 1,1- Difluoroethane and difluoromethane；The quality of the high-efficiency environmental protection refrigerant
Percentage is 10~70, remaining is carbon dioxide.
Further, the mass percent of the high-efficiency environmental protection refrigerant is 50~60.
The GWP value of the high-efficiency environmental protection refrigerant is 0 lower than 1000, ODP value.
Compared with prior art, the beneficial effects of the present invention are:
Mixed working fluid of the present invention is with CO2As a kind of component, CO2GWP value be 1, ODP value is 0, another component is (i.e. high
Effect environment friendly refrigerating fluid) it is the refrigerant working medium that a kind of GWP value is 0 lower than 1000, ODP value, it is fluoroethane (R161) or 1,
1- Difluoroethane (R152a) or difluoromethane (R32)), environmental-protecting performance is good, i.e. ODP (ozone depleting potential value)=0 He
GWP (greenhouse effects potential value) < 100.
Safe refrigerant used in mixed working fluid of the invention is able to satisfy U.S.'s ANSI/ASHRAE34-2010 standard
In A2 class working medium safety requirements, while CO2With fire retardation, which has very high security performance.In environment
Under temperature condition (temperature 298K, pressure 1atm), mixed working fluid security performance is excellent.Use the mixed working fluid, system operatio pressure
Power is decreased obviously, and reduces the security risk of system.It is excellent to engine high low-grade heat source coupling recycling ability, it can be simultaneously
The waste heat energy of high efficiente callback engine flue gas and jacket water.Thermodynamic property is good, follows in given engine exhaust heat recycling power
Under ring optimum operating condition, the thermal efficiency is higher than 12%.Recycle heat loss it is small, the present invention be binary non-azeotropic mixed working medium, with it is cold and hot
There are temperature glide in the heat transfer process of source, the irreversible loss in heat transfer process is effectively reduced.
Specific embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below, described specific embodiment
Only the present invention is explained, is not intended to limit the invention.
Each component refers both to mass percent in mixed working fluid in following embodiment:
Embodiment A1: by R161/CO2Mixing backlash fill system is carried out according to the ratio of 10:90.
Embodiment A2: by R161/CO2Mixing backlash fill system is carried out according to the ratio of 55:45.
Embodiment A3: by R161/CO2Mixing backlash fill system is carried out according to the ratio of 70:30.
Embodiment B1: by R152a/CO2Mixing backlash fill system is carried out according to the ratio of 10:90.
Embodiment B2: by R152a/CO2Mixing backlash fill system is carried out according to the ratio of 55:45.
Embodiment B3: by R152a/CO2Mixing backlash fill system is carried out according to the ratio of 70:30.
Embodiment C1: by R32/CO2Mixing backlash fill system is carried out according to the ratio of 10:90.
Embodiment C2: by R32/CO2Mixing backlash fill system is carried out according to the ratio of 55:45.
Embodiment C3: by R32/CO2Mixing backlash fill system is carried out according to the ratio of 70:30.
Table 1 gives the critical parameters of mixed working fluid in each embodiment, in CO2The middle suitable selected refrigerant working medium of mixing
It is formed by mixed working fluid, mixed working fluid critical temperature elevation, critical pressure declines, and the requirement to system external world cooling condition is bright
It is aobvious to reduce.
1 mixed working fluid critical parameters of table
Under the conditions of target engine waste heat, the specific operating condition of residual neat recovering system design is given are as follows: engine dew point temperature
Degree be 120 DEG C, Isentropic Efficiency of Expansion Machine 0.7, working medium pump isentropic efficiency be 0.8, preheater, gas heater, regenerator and
Pinch point temperature in condenser is respectively 5K, 30K, 15K and 5K.Following under section Example has been obtained after carrying out loop optimization
Ring main indicator is as shown in table 2.
The performance of the certain applications example of the present invention of table 2
Through the foregoing embodiment and relevant calculation data can learn (the parameter and implementation of the working medium in the embodiment of the present invention
As a result obtained by the calculation of thermodynamics that those skilled in the art generally use and know), the present invention utilizes CO2With refrigerant
Obtained mixed working fluid is mixed, 75% can be higher than with high efficiente callback engine flue gas and jacket water, flue gas utilization rate, jacket water
Utilization rate is higher than 85%.In the case where meeting feature of environmental protection requirement and security requirement, thermodynamic property is excellent.And with it is pure
CO2It compares, the critical pressure decline of mixture reduces the operating pressure of system, improves the safety of system operation.Stagnation temperature
Degree increases, and relaxes the cooling condition of system, meets vehicle waste heat recovery system condition.
To sum up, mixed working fluid of the invention is comprising CO2With the Rankine cycle mixed working fluid of conventional refrigerants, whole is mixed
It is good to close working medium environmental-protecting performance.It is decreased obviously using the operating pressure of the dynamical system of the mixed working fluid, the cooling condition of system
Relax, meet vehicle waste heat recovery system condition, can simultaneously high efficiente callback engine flue gas and jacket water heat source energy, design
The thermal efficiency is higher than 12% under operating condition, and thermodynamic property is good.
Although invention has been described above, but the invention is not limited in above-mentioned embodiment, on
The specific embodiment stated is only schematical, rather than restrictive, and those skilled in the art are of the invention
Under enlightenment, without deviating from the spirit of the invention, many variations can also be made, these belong to protection of the invention it
It is interior.
Claims (3)
1. a kind of afterheat of IC engine recycles power cycle environmental-protecting and high-efficient type mixed working fluid, which is characterized in that by carbon dioxide and
Refrigerant composition, the refrigerant is high-efficiency environmental protection refrigerant, and the high-efficiency environmental protection refrigerant is fluoroethane, 1,1- difluoro
Any one of ethane and difluoromethane；The mass percent of the high-efficiency environmental protection refrigerant is 10~70, remaining is two
Carbonoxide.
2. afterheat of IC engine recycles power cycle environmental-protecting and high-efficient type mixed working fluid according to claim 1, which is characterized in that
The mass percent of the high-efficiency environmental protection refrigerant is 50~60.
3. afterheat of IC engine recycles power cycle environmental-protecting and high-efficient type mixed working fluid according to claim 1, which is characterized in that
The GWP value of the high-efficiency environmental protection refrigerant is 0 lower than 1000, ODP value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643869.2A CN109705814A (en) | 2018-12-30 | 2018-12-30 | A kind of afterheat of IC engine recycling power cycle environmental-protecting and high-efficient type mixed working fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643869.2A CN109705814A (en) | 2018-12-30 | 2018-12-30 | A kind of afterheat of IC engine recycling power cycle environmental-protecting and high-efficient type mixed working fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109705814A true CN109705814A (en) | 2019-05-03 |
Family
ID=66259709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811643869.2A Pending CN109705814A (en) | 2018-12-30 | 2018-12-30 | A kind of afterheat of IC engine recycling power cycle environmental-protecting and high-efficient type mixed working fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109705814A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1735674A (en) * | 2002-11-01 | 2006-02-15 | 霍尼韦尔国际公司 | Heat transfer fluid comprising difluoromethane and carbon dioxide |
| CN1842579A (en) * | 2003-08-27 | 2006-10-04 | 苏威氟有限公司 | Use of a refrigerant mixture |
| CN1973016A (en) * | 2004-04-29 | 2007-05-30 | 霍尼韦尔国际公司 | Compositions comprising tetrafluoeopropene and carbon dioxide |
| CN101054336A (en) * | 2006-03-10 | 2007-10-17 | 霍尼韦尔国际公司 | Method for generating pollution credits |
| CN101161758A (en) * | 2007-10-31 | 2008-04-16 | 湖南大学 | Carbon dioxide based fluoric series coolant |
| CN101914368A (en) * | 2010-07-09 | 2010-12-15 | 天津大学 | Transcritical power cycle mixed working medium |
| CN103781872A (en) * | 2011-08-05 | 2014-05-07 | 墨西哥化学阿玛科股份有限公司 | Heat transfer compositions |
| CN104704082A (en) * | 2012-08-20 | 2015-06-10 | 霍尼韦尔国际公司 | Low GWP heat transfer compositions |
-
2018
- 2018-12-30 CN CN201811643869.2A patent/CN109705814A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1735674A (en) * | 2002-11-01 | 2006-02-15 | 霍尼韦尔国际公司 | Heat transfer fluid comprising difluoromethane and carbon dioxide |
| CN1842579A (en) * | 2003-08-27 | 2006-10-04 | 苏威氟有限公司 | Use of a refrigerant mixture |
| CN1973016A (en) * | 2004-04-29 | 2007-05-30 | 霍尼韦尔国际公司 | Compositions comprising tetrafluoeopropene and carbon dioxide |
| CN101054336A (en) * | 2006-03-10 | 2007-10-17 | 霍尼韦尔国际公司 | Method for generating pollution credits |
| CN101161758A (en) * | 2007-10-31 | 2008-04-16 | 湖南大学 | Carbon dioxide based fluoric series coolant |
| CN101914368A (en) * | 2010-07-09 | 2010-12-15 | 天津大学 | Transcritical power cycle mixed working medium |
| CN103781872A (en) * | 2011-08-05 | 2014-05-07 | 墨西哥化学阿玛科股份有限公司 | Heat transfer compositions |
| CN104704082A (en) * | 2012-08-20 | 2015-06-10 | 霍尼韦尔国际公司 | Low GWP heat transfer compositions |
Non-Patent Citations (2)
| Title |
|---|
| 翁史烈: "《中低温余热发电技术》", 31 December 2015, 上海交通大学出版社 * |
| 肖学智: "《含氢氯氟烃（HCFCs）替代技术指南》", 30 June 2016, 中国环境出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105222385B (en) | A kind of Trans-critical cycle CO2Combined heat-pump system | |
| JP2004527721A5 (en) | ||
| CN104929706A (en) | Combined circulating energy supply system | |
| CN109897607B (en) | Heat pump mixed working medium and application | |
| CN104963732A (en) | Combined circulating energy supplying system | |
| US11215087B2 (en) | Organic Rankine cycle system with supercritical double-expansion and two-stage heat recovery | |
| CN104948245A (en) | Combined-cycle energy supply system | |
| CN108105833A (en) | CO is subcooled in a kind of mechanical assistance2Trans-critical cycle heat pump heating system | |
| CN109609103A (en) | A kind of three constituent element mixed working fluids suitable for afterheat of IC engine recycling power cycle | |
| CN108317581A (en) | A kind of non-azeotropic working medium mechanical-assisted supercooling CO2Trans-critical cycle heat pump heating system | |
| CN208011829U (en) | A kind of mechanical-assisted supercooling CO2 Trans-critical cycle heat pump heating systems | |
| CN109705814A (en) | A kind of afterheat of IC engine recycling power cycle environmental-protecting and high-efficient type mixed working fluid | |
| CN105713576A (en) | Rankine cycle mixing working medium of 1,1,1,3,3-pentafluoropropane and pentafluoroethane for diesel engine waste heat recovery and waste heat recovery method | |
| CN109163470A (en) | A kind of ultralow temperature carbon dioxide water chiller-heater unit | |
| CN206755651U (en) | Compression/absorption enclosed parallel connection composite fuel gas heat pump assembly | |
| CN105019954A (en) | Combined-cycle energy supply system | |
| WO2017012167A1 (en) | Organic rankine cycle mixed working medium applicable to high-temperature exhaust waste heat recovery of internal combustion engine | |
| CN108049924A (en) | A kind of triangle Xun Huan and the united residual neat recovering system of Rankine cycle and its method | |
| CN103937459A (en) | Novel power cycle mixed working medium taking CO2 as main component, as well as system and method thereof | |
| CN103013450B (en) | Organic Rankine cycle mixed working medium containing toluene | |
| CN104989472A (en) | Combined cycle energy supply system | |
| CN108730763A (en) | Open type heat pump hot water apparatus based on air circulation | |
| CN114350321A (en) | Energy-saving environment-friendly heat pump working medium and application thereof | |
| CN209875221U (en) | System for improving power generation capacity of medium-low temperature heat source by adopting injection pump and separator | |
| CN114001474A (en) | CO coupled with absorption refrigeration cycle2Transcritical refrigeration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190503 |
|
| WD01 | Invention patent application deemed withdrawn after publication |